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