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