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