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