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