“Satan” is a title meaning adversary to the xtian god, there’s a lot of them, but commonly people seem to go with Saturn, because why not? It ticks all the right boxes for the kind of energy that’s wanted here. Iblis is Satan is Paimon is Azazel (depending on who you talk to) and Azazel’s sigil is literally the sigil of Saturn.
Who “he” is has been discussed a lot here before, here’s a convo with links to the favourite ones:
In short: yes Saturn will work fine 