How to include research with a professor on a CV after they have moved to a different university than the one I attended
You did the research at the institution you attended, so that's what you should list on your CV.
It's not typical to put contact information for a professor on your CV, but if you'd like to make sure they are easy to find you can certainly add a note.
I'd do something like:

Undergraduate Researcher, Dr. I. Newton lab (now at Apple University)