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