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