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