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