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