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