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