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