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