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)(17,18,23,26,22,27,21,30)(19,25,28,31,20,24,29,32)(1,2)(3,7)(4,8)(5,6)(9,10)(11,15)(12,14)(13,16)(17,19)(18,24)(20,22)(21,29)(23,28)(25,27)(26,32)(30,31) involution — undirected(1,3,5,4)(2,7,6,8)(9,11)(10,13)(12,16)(14,15)(17,18)(19,25)(20,24)(21,26)(22,27)(23,30)(28,32)(29,31)(2,6)(7,8)(11,16)(13,15)(17,20,22,19)(18,25,27,24)(21,28,23,29)(26,31,30,32)(1,4,5,3)(2,8,6,7)(10,14)(13,15)(17,21,22,23)(18,26,27,30)(19,28,20,29)(24,31,25,32)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.