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