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