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