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