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