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