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