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