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