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