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