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