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