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