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