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