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