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