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