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)(11,18)(12,15)(17,22)(19,20)(21,23) involution — undirected(1,3)(2,5)(4,8)(6,7)(9,10,15,22,13,17,12,14)(11,16,18,23,20,24,19,21)(3,8)(5,6)(9,11)(10,16)(12,19)(13,20)(14,21)(15,18)(17,24)(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.