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