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