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