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