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