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