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