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