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