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