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