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