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