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