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)(18,22)(19,26)(24,25)(28,30)(1,3,5,4)(2,6,8,7)(9,11,13,12)(10,14,15,16)(17,18)(19,27)(20,22)(21,24)(23,28)(25,29)(26,32)(30,31)(1,3,5,4)(2,7,8,6)(9,12,13,11)(10,14,15,16)(17,19)(18,23)(20,26)(21,30)(22,31)(24,27)(25,32)(28,29)(1,4,5,3)(2,6,8,7)(18,24)(21,29)(22,25)(23,27)(28,30)(31,32)(19,26)(23,31)(27,32)(28,30) 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.