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