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