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