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