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