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