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