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