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