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