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