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