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