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