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