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