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