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