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