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