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