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