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