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