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)(17,18,21,24,22,26,20,25)(19,27,30,23,28,32,29,31)(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)(24,27)(25,32)(26,31)(18,24)(20,21)(23,27)(25,26)(29,30)(31,32) involution — undirected(2,7)(3,10)(8,15)(11,12)(19,28)(23,31)(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.