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