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