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