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