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