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)(17,18,22,25)(19,26,28,29)(20,21,30,24)(23,31,32,27)(1,3,5,4)(2,7,6,8)(10,13)(14,16)(17,19,22,28)(18,23,25,32)(20,29,30,26)(21,31,24,27)(1,3,5,4)(2,7,6,8)(9,11,12,15)(10,14,13,16)(17,20,22,30)(18,24,25,21)(19,23,28,32)(26,27,29,31)(1,4,5,3)(2,8,6,7)(18,20)(21,24)(23,29)(25,30)(26,32)(27,31)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.