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)(11,15)(17,18,22,25,21,27,20,26)(19,23,28,24,30,32,29,31)(1,3,4,8)(2,5,6,7)(10,13)(11,15)(17,19)(18,23)(20,29)(21,30)(22,28)(24,25)(26,31)(27,32)(9,10)(11,14)(12,13)(15,16)(17,19,21,30)(18,24,27,31)(20,28,22,29)(23,26,32,25)(3,8)(5,7)(10,13)(14,16)(17,19)(18,23)(20,29)(21,30)(22,28)(24,25)(26,31)(27,32) involution — undirected(9,11,12,15)(10,14,13,16)(17,20,21,22)(18,25,27,26)(19,28,30,29)(23,31,32,24)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.