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