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