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