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