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