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