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