One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(3,7)(9,10)(11,12)(13,14)(15,16)(17,18)(19,25)(20,24)(21,22)(23,27)(26,31)(28,29)(30,32)(33,34,39,42)(35,40,36,37)(38,46,47,41)(43,45,44,48)(2,5)(6,8)(9,11)(10,12)(13,15)(14,16)(18,22)(20,28)(23,25)(26,32)(33,35,39,36)(34,40,42,37)(38,43,47,44)(41,48,46,45)(10,14)(11,15)(17,19,21,27)(18,23,22,25)(20,26,28,32)(24,30,29,31)(33,36,39,35)(34,40,42,37)(38,44,47,43)(41,48,46,45)(1,2)(3,6)(4,5)(7,8)(9,10)(11,16)(12,15)(13,14)(17,18)(19,23)(20,24)(21,22)(25,27)(26,30)(28,29)(31,32)(33,37,39,40)(34,36,42,35)(38,45,47,48)(41,44,46,43)(1,3)(2,6)(4,7)(5,8)(9,12,13,16)(10,15,14,11)(17,20,21,28)(18,24,22,29)(19,26,27,32)(23,30,25,31)(33,38)(34,41)(35,43)(36,44)(37,45)(39,47)(40,48)(42,46)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.