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