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