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