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