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