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