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