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