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