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