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