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