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