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