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