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