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