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