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