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