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