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