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