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