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