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