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