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