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)(17,18,24,27)(19,25,31,28)(20,22,34,23)(21,26,38,43)(29,40,45,44)(30,41,39,32)(33,36,47,37)(35,42,48,46)(1,3,6,12)(2,7,9,10)(4,11,5,14)(8,15,13,16)(17,19)(18,25)(20,32)(21,35)(22,30)(23,39)(24,31)(26,42)(27,28)(29,37)(33,40)(34,41)(36,45)(38,48)(43,46)(44,47)(17,20,23,27,24,34,22,18)(19,28,30,32,31,25,39,41)(21,33,37,43,38,47,36,26)(29,44,35,46,45,40,48,42)(1,4,6,5)(2,8,9,13)(3,11,12,14)(7,15,10,16)(1,5,6,4)(2,8,9,13)(3,11,12,14)(7,16,10,15)(17,21,22,36,24,38,23,37)(18,26,34,47,27,43,20,33)(19,29,39,48,31,45,30,35)(25,40,32,46,28,44,41,42)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.