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