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