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