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