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