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