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