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