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