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