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