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)(17,18,23,26)(19,27,28,31)(20,30,25,22)(21,24,32,29)(1,3,5,4)(2,6,8,7)(9,11,14,12)(10,15,13,16)(17,19,22,29,23,28,30,24)(18,21,25,27,26,32,20,31)(1,3,5,4)(2,7,8,6)(9,10,14,13)(11,16,12,15)(17,20,22,18,23,25,30,26)(19,27,29,32,28,31,24,21)(1,3,5,4)(2,7,8,6)(9,12,14,11)(10,15,13,16)(17,21,23,32)(18,24,26,29)(19,20,28,25)(22,27,30,31)(1,4,5,3)(2,6,8,7)(9,13,14,10)(11,16,12,15)(19,28)(21,32)(24,29)(27,31)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.