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