For information purpose this is unlikely a violation. The type of uses here is considered as nominative use. You're not infringing the institute or speaking on their behalf; it's simply "I graduated from XXX university and here is the name and the logo of that place." If you are very concerned, add a disclaimer at the bottom saying something like "Logos are for reference only, I do not represent any of these organizations."
I, however, do consider this potentially inappropriate. For audience, mentioning the name is fine, but slapping the logo, emblem, or seal onto one's work seems like a much bigger deal. I have the following concerns:
I specifically mention it because you said "design purpose." Most school have required design rules when their logo is used. For example, there can be no any alteration of color or scale, no neighboring art components, no incorporating into any other artwork, etc. If you want to slap them all side by side, or worse mashing them into a "design," chance is one of the rules could be violated. It's not a big deal usually (aka you are unlikely to get a lawyer contacting you), just bad practices. I seriously doubt a university will come after any alumni just because they showed the logo inappropriately.
Depending on the audience this action may appear insecure or show-off.
What does this add to the purpose above the name? I can see there is a point if, say, you have emblems in blue, red, and yellow colors, now you just need a green to complete your Harry Potter school color collection, then I'll think "ha, pretty funny." Otherwise, just putting the logo with the name feels redundant.
Here is a page on upcounsel if you wish to learn more. Regulations may differ geographically. Ask the schools for permission if you're in the slightest doubt.
