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