Generally, or for big muscles like quadriceps and exercises like squats, do them before cardiovascular training. One reason is that you don't want to tire them out before half an hour or more of cardiovascular training. More information is here:
https://www.linkedin.com/pulse/cardiovascular-training-before-after-resistance-bsc-hons-mcsp/
https://www.linkedin.com/pulse/cardiovascular-training-before-after-resistance-bsc-hons-mcsp/