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