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