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