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