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