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