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