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