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