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)(17,18,22,20,21,25,31,30)(19,23,28,26,27,24,32,29)(1,3,6,2)(4,7,5,8)(9,11)(10,13)(12,15)(14,16)(17,19)(18,23)(20,26)(21,27)(22,28)(24,25)(29,30)(31,32)(10,14)(11,15)(17,20,22,25,21,30,31,18)(19,26,28,24,27,29,32,23)(1,4,6,5)(2,7,3,8)(10,14)(13,16)(17,19)(18,24)(20,29)(21,27)(22,28)(23,25)(26,30)(31,32)(1,5,6,4)(2,7,3,8)(19,27)(23,24)(26,29)(28,32)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.