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