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