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