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