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