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