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