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