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