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