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