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