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