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