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