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