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