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