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