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