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