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