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