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