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