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