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