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