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