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