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