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