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