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