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