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