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