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