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