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