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