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