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