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