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