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