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