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