True, at the end of the day, it’s a choice of integrity and employability
If you signed it, it’s my belief you should serve it

But of course as the above poster said, if it hinders yours future prospects, you should think about it

Also, it depends on your fresh grad employability
Are you in a discipline/major with great employability? Professional degree, com science?

Finally, practical advice: go and do an internship with your company this summer
See how it’s like before delivering a final verdict