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