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