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