One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(9,10,14,16)(11,13,15,12)(18,21)(22,24)(5,6,7,8)(9,11,14,15)(10,12,16,13)(17,18,20,21)(19,22,23,24)(5,6)(7,8)(9,12,14,13)(10,15,16,11)(17,19,20,23)(18,22,21,24)(1,2)(3,4)(9,13,14,12)(10,15,16,11)(17,18)(19,22)(20,21)(23,24)(9,10)(11,12)(13,15)(14,16)(17,19)(18,22)(20,23)(21,24) 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.