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