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