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