Presentions for papers or posters at conferences are easy to reference, but how do you reference activities such as organizing conference symposia / panels on your CV?
There are, of course, a number of ways to do this, as there is no fixed "CV" format even within a field, let alone across them. I will tell you my own methods for doing this:
Long sessions, such as full or half-day workshops, breakout tracks, etc. go under Teaching Experience, with the conference information placed in lieu of normal course information. For example:
Session Organizer, “An Introduction to Doing Good Research”, Learning Institute, Association for Right Thinking People Annual Conference. October 2011, 2012 and 2014
Smaller sessions get pulled into Invited Talks, which in my CV is actually Invited Talks and Organized Workshops, which then have 'Panel Moderator' or 'Symposium Organizer' instead of an author. For example:
Symposium Organizer, "Novel Methods in Being Unimpeachably Correct". 2016. Society for Doing Science Annual Meeting, Chicago, IL.
I recommend including a section at the end of your CV entitled "Service", where you list things like conference/panel organization, committee memberships, refereeing activities, and the like. Initially you may have only one or two items, but the list will grow over time. As this list grows, organize it into subsections (University service vs Professional service, for example) and subsubsections (editorial boards, program committees, workshop organization, proposal reviews, refereeing, ...).
(I'm assuming that you mean the American Academic CV, which includes everything, and not the UK Professional CV, which is just a two-page sketch.)