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