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