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