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