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