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