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