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