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