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