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)(22,36)(23,27)(25,33)(28,42)(29,38)(30,39)(31,46)(34,40)(35,41)(37,43)(44,47)(45,48)(1,3,5,4)(2,6,7,8)(9,10)(11,14)(12,13)(15,16)(17,19)(18,24)(20,28)(21,29)(22,31)(23,30)(25,37)(26,38)(27,39)(32,42)(33,43)(34,44)(35,45)(36,46)(40,47)(41,48)(1,4,5,3)(2,6,7,8)(10,13)(14,16)(17,20,22,33,23,34,21,35)(18,25,26,32,27,41,36,40)(19,28,31,43,30,44,29,45)(24,37,38,42,39,48,46,47)(9,11)(10,14)(12,15)(13,16)(17,21,23,22)(18,26,27,36)(19,29,30,31)(20,33,34,35)(24,38,39,46)(25,40,41,32)(28,43,44,45)(37,47,48,42)(11,15)(14,16)(19,30)(24,39)(28,44)(29,31)(37,48)(38,46)(42,47)(43,45) 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.