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