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