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