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