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