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