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