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