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