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