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)(19,20)(21,25)(22,27)(23,26)(24,30)(28,32)(29,31)(1,2)(3,7)(4,8)(5,6)(9,11,13,12)(10,14,15,16)(17,19,21,24,23,29,22,28)(18,20,25,30,26,31,27,32)(1,3,5,4)(2,7,6,8)(9,12,13,11)(10,14,15,16)(17,20)(18,19)(21,32)(22,30)(23,31)(24,27)(25,28)(26,29)(1,4,5,3)(2,7,6,8)(17,20)(18,24)(19,27)(21,30)(22,32)(23,31)(25,29)(26,28)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.