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