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