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