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