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