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