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