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