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