In my time as a PhD student (granted still there currently just at the finishing things up stage) I was actually part of founding an organization for students to basically do this. We invited speakers from different fields and had them talk about "alternative" career paths considering the current system basically assumes you want to become a professor. We also included a workshop every year where we would build in career skills and have professionals come and speak. You learn very quickly that there is an incredible range of activities one can do with a PhD.