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