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