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