I think the easiest way to dig into the diverse talent pool is to offer competitive pay and competitive benefits! Another way is to have a company environment that seems fun and friendly for everyone.
Diverse, skilled workers are even rarer (much rarer) than simply skilled workers. Expect to pay more! It's a simple matter of supply and demand. Universities have the exact same issue-- they fight over the most skilled AND diverse students, so they compete by offering competitive scholarships.
Also, consider specifically advertising for diversity in those roles. I'm not sure about the legality of this, but at my company, we have "diversity interns", which are, internships only open for people who are "diverse".
The brilliant part about "diversity interns" is that eventually, they graduate, and you can hire them as full time. You have a full summer, or even a full year to assess if this team member is a good fit while they are still in school.