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