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