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