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