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