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