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