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