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