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