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