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