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