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