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