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)(17,18,22,25)(19,20,23,28)(21,24,30,32)(26,27,29,31)(34,39)(36,43)(40,45)(44,47)(3,4)(6,16)(8,12)(10,13)(17,19,22,23)(18,20,25,28)(21,29,30,26)(24,31,32,27)(33,34,38,39)(35,36,42,43)(37,45,46,40)(41,47,48,44)(1,3,7,4)(2,8,11,12)(5,10,15,13)(6,14,16,9)(17,20,22,28)(18,23,25,19)(21,27,30,31)(24,29,32,26)(33,35,38,42)(34,36,39,43)(37,41,46,48)(40,44,45,47)(1,4,7,3)(2,8,11,12)(5,10,15,13)(6,9,16,14)(17,19)(18,20)(21,26)(22,23)(24,27)(25,28)(29,30)(31,32)(33,36,38,43)(34,35,39,42)(37,44,46,47)(40,41,45,48)(1,5,7,15)(2,9,11,14)(3,13,4,10)(6,8,16,12)(17,20)(18,23)(19,25)(21,27)(22,28)(24,29)(26,32)(30,31)(33,35)(34,36)(37,41)(38,42)(39,43)(40,44)(45,47)(46,48)(1,6,7,16)(2,10,11,13)(3,14,4,9)(5,8,15,12)(17,21)(18,24)(19,26)(20,27)(22,30)(23,29)(25,32)(28,31)(33,37)(34,40)(35,41)(36,44)(38,46)(39,45)(42,48)(43,47)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.