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