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