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