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