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