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