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