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