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