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