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