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