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