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)(2,8)(4,19,21,14)(5,15)(6,17)(7,16)(9,26,28,23)(10,24)(11,13)(12,25)(18,29,27,32)(20,31,22,30)(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.