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