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