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