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