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)(11,14)(12,15)(13,16)(17,18,22,27)(19,29,32,24)(20,34,37,26)(21,28,23,25)(30,40,35,43)(31,39,33,41)(36,44,38,42)(45,47,46,48)(1,2)(3,6)(4,5)(7,8)(11,12)(14,15)(17,19,22,32)(18,24,27,29)(20,35,37,30)(21,31,23,33)(25,39,28,41)(26,43,34,40)(36,46,38,45)(42,48,44,47)(9,11,13,12)(10,14,16,15)(18,25)(21,23)(24,39)(26,42)(27,28)(29,41)(31,33)(34,44)(36,38)(40,47)(43,48)(45,46)(2,5)(6,7)(9,12,13,11)(10,15,16,14)(17,20)(18,26)(19,30)(21,38)(22,37)(23,36)(24,40)(25,42)(27,34)(28,44)(29,43)(31,46)(32,35)(33,45)(39,47)(41,48)(1,3,4,8)(2,6,5,7)(10,16)(14,15)(17,21,22,23)(18,25,27,28)(19,31,32,33)(20,36,37,38)(24,39,29,41)(26,44,34,42)(30,45,35,46)(40,48,43,47)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.