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