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