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