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