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