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