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