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