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)(11,18)(12,16)(13,23)(14,17)(15,21)(19,22)(20,24)(5,7,8,6)(9,11)(10,15)(12,21)(13,20)(14,22)(16,19)(17,24)(18,23)(2,4)(9,10)(11,15)(12,23)(13,16)(14,17)(18,21)(19,20)(22,24) involution — undirected(9,10)(11,19)(12,16)(13,23)(14,17)(15,20)(18,22)(21,24) involution — undirected(9,12,14,13)(10,16,17,23)(11,20,22,21)(15,18,24,19)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.