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