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