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