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