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)(19,25)(20,27)(21,24)(22,23)(26,32)(28,29)(30,31)(33,34)(35,37)(36,41)(38,47)(39,40)(42,44)(43,46)(45,48)(2,4)(7,9)(8,12)(14,15)(17,19)(18,20)(21,26)(22,27)(23,25)(24,28)(29,30)(31,32)(33,35)(34,37)(36,44)(38,45)(39,43)(40,46)(41,42)(47,48) involution — undirected(18,23)(20,25)(24,31)(28,32)(34,40)(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)(18,19)(21,28)(22,25)(23,27)(24,26)(29,31)(30,32)(33,36,39,45)(34,41,40,48)(35,44,43,38)(37,42,46,47)(1,4,6,2)(3,9,11,7)(5,8,13,12)(10,14,16,15)(17,21,22,30)(18,24,23,31)(19,26,27,29)(20,28,25,32)(33,37)(34,35)(36,42)(38,48)(39,46)(40,43)(41,44)(45,47)(1,5,6,13)(2,8,4,12)(3,10,11,16)(7,14,9,15)(17,19)(18,20)(21,29)(22,27)(23,25)(24,32)(26,30)(28,31)(33,38,39,44)(34,42,40,47)(35,45,43,36)(37,41,46,48)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.