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