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