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