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