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