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