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