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