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