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