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)(12,17)(13,16)(14,18)(15,20)(21,24)(22,23) involution — undirected(2,6)(3,4)(7,8)(9,11)(10,15)(12,22)(13,20)(14,21)(16,24)(17,19)(18,23) involution — undirected(10,16)(11,20)(12,13)(17,18)(19,24)(21,22) involution — undirected(1,3,5,4)(2,7,8,6)(11,21)(15,23)(19,24)(20,22)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.