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