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