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