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