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)(11,14)(12,16)(13,15)(18,21)(22,24) involution — undirected(1,2,6,7)(3,8,4,5)(9,11,13,16)(10,14,15,12)(17,18)(19,22)(20,21)(23,24)(2,7)(3,4)(9,12)(10,11)(13,14)(15,16) involution — undirected(1,3,6,4)(2,8,7,5)(9,10)(11,14)(12,16)(13,15)(17,19,20,23)(18,22,21,24)(1,4,6,3)(2,5,7,8)(1,5)(2,3)(4,7)(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.