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