It may seem against some ideologies out there, but as a husband, a father, and a colleague of numerous women in academia I can approximately tell you what women considering career in academia want to see in your ad.
How family friendly is your work environment? Any benefits for parents? Not just women, their husbands too. Vacations, breaks, holidays? Available housing close to campus? Hospitals / kindergartens / schools nearby? Public commute options? Low stress, friendly work environment? Stability of employment?
If you want a more accurate opinion, ask some women what they want from an academic institution to consider a career there.
Then write your ad describing what your institution has to offer women. Specific, succinct, and solid offers. No 'maybe', 'if then maybe', etc.
Then you will attract top talent. Sure, many under-qualified will apply, but you can reject them based on their CV and pick the best.
Don't present requirements as 'requirements'. The people you really want will have requirements for you. Instead, ask applicants to please include in their resume 1), 2), 3), etc. without using the word 'requirement'.
One thing that won't work for sure is making a flashy ad like for selling a vacuum cleaner. With career decision of such critical importance, there is no chance fooling anyone into it. Especially smart, young women. Age 24-30 is a good time to make a family, give birth to a child, and put a down-payment on a house. And smart women do want it good.
In fact, many people disagree with such a pragmatic view, but I honestly don't understand why. It works. The question is not about letting women to participate or not. I am assuming there are equal rights. The question is about attracting talented women.