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