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