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