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