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