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