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