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