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