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)(11,12)(13,16)(14,15)(17,18)(19,22)(20,24)(21,23)(26,29)(27,31)(9,11,13,15)(10,14,16,12)(17,19,21,24)(18,22,23,20)(26,29)(30,32)(1,3,6,4)(2,7,5,8)(9,12,13,14)(10,15,16,11)(17,19)(18,20)(21,24)(22,23)(25,26,28,29)(27,30,31,32)(1,4,6,3)(2,8,5,7)(9,12)(10,11)(13,14)(15,16)(25,27)(26,30)(28,31)(29,32)(1,5,6,2)(3,8,4,7)(9,11)(10,12)(13,15)(14,16)(17,20)(18,19)(21,22)(23,24)(25,27)(26,30)(28,31)(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.