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