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