One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,7,8,6)(9,10)(11,15)(12,13)(14,16)(17,18,20,22)(19,23,24,21)(1,2,5,4)(3,6,8,7)(10,13)(11,16)(19,24)(21,23)(26,29)(30,32)(9,10,12,13)(11,14,16,15)(17,18)(19,21)(20,22)(23,24)(25,26,28,29)(27,30,31,32)(1,3,5,8)(2,6,4,7)(9,10)(11,14)(12,13)(15,16)(17,19,20,24)(18,21,22,23)(25,27,28,31)(26,30,29,32)(1,4,5,2)(3,7,8,6)(9,11)(10,14)(12,16)(13,15)(17,18)(19,21)(20,22)(23,24)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.