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