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