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