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