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