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