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