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