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