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