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