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