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