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