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