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