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