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