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