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