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