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