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