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