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