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