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