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