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