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