One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(9,10,12,15)(11,14,16,13)(19,23)(22,24)(2,4)(5,6,7,8)(9,11,12,16)(10,13,15,14)(18,21)(22,24)(1,2,3,4)(5,6)(7,8)(9,10)(11,13)(12,15)(14,16)(17,18)(19,22)(20,21)(23,24)(1,2,3,4)(9,10)(11,13)(12,15)(14,16)(17,19,20,23)(18,22,21,24)(1,2)(3,4)(9,11)(10,14)(12,16)(13,15) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.