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