To clarify:
1. IRC section 108(f) allows certain employers to make tax-free student loan payments for the student, called LRAP program (loan repayment assistance programs). It usually requires some form of public service, although this is different from "public service loan forgiveness" (where the government forgives the loan after you meet certain requirements). If your employer does not already have an LRAP, I doubt they can set one up on short notice, it's complicated and very technical, and professional help will be needed.
2. The CARES act seems to have temporarily included student loan payments in the $5250 annual limit for tax free education assistance. That means that if your employer already has a tuition assistance program, they can add student loan assistance to the program for 2020 only. Payments of up to $5250 total (for combined tuition and loan assistance) can be tax-free to the student.
https://thecollegeinvestor.com/33583/employer-student-loan-assistance-tax-free/
However, if your employer does not already have a tuition assistance program, there are a number of challenges to setting one up. Key is that any qualifying fringe benefit program must be offered to all similarly qualified employees, it can't be just you. More information on fringe benefit programs is found in IRS publication 15-B.
