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