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