Don't expect her to do so right away. Don't call and ask for referrals.
Just check in, person to person. For example, this past week I've been upgrading my home audio equipment. It made me think of a guy I worked with 20 years ago who was obsessed with stereo gear. I'll probably just write a note saying that I was thinking of him and wondering how he is doing. That's it.
Your greatest career advancement resource is not your résumé. It's the people who know you. And they will bring opportunities to you if they feel good about you and you are top of mind for them when opportunities cross their path.
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