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