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