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