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