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