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